Jahr  MPECS Discovery Observations
1993      0         0            0
1994      0         0            0
1995      0         0            0
1996      0         0            0
1997      0         0            0
1998      0         0            0
1999      0         0            0
2000      7         0           37
2001     28         1          156
2002    121        12         1836
2003    112        11         2090
2004    126        22         1722
2005     78         2         1178
2006     95         7          954
2007     20         3          136
2008     21         2          108
2009      8         2           32
2010     13         0           74
2011      7         0           49
2012      4         0           47
2013      6         0           59
2014      3         0            3
2015      2         0            9
2016      0         0            0
2017      0         0            0
2018      0         0            0
2019      0         0            0
2020      5         0           93
2021      5         0           88
2022      2         1           16
2023      0         0            0